{"id":"CVE-2026-111694","kind":"vulnerability","aliases":["CVE-2026-111694"],"related":[],"title":"qKnow: missing authentication exposes user phone numbers and roles","description":"qKnow through 2.4.3 contains a missing authentication vulnerability that allows unauthenticated remote attackers to access /flyflow workflow integration endpoints permitted in SecurityConfig. Attackers can POST sequential userId values to /flyflow/userById or call roleAll and deptListByParentDeptId to enumerate user phone numbers, roles, and department structure.","summary":"qKnow through 2.4.3 exposes its /flyflow workflow integration endpoints without authentication because SecurityConfig permits them. An unauthenticated remote attacker can enumerate user phone numbers, roles and department structure by posting sequential userId values.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["java","package","qknow","self-hosted"],"not_affected_if":["auth-required"],"how_to_check":"- Check the qKnow version in use; affected versions are 2.4.3 and earlier.\n- Request `/flyflow/userById` or `/flyflow/roleAll` without a session token and see whether data is returned.\n- Review the SecurityConfig permit rules for `/flyflow/**` paths.","fix":null,"status":"open","published_at":"2026-10-16T18:17:52+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","triaged_at":"2026-10-25T03:42:21+00:00","updated_at":"2026-10-25T03:42:21+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-10-25T03:42:21Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"qKnow: missing authentication exposes user phone numbers and roles","impact":"medium","summary":"qKnow through 2.4.3 exposes its /flyflow workflow integration endpoints without authentication because SecurityConfig permits them. An unauthenticated remote attacker can enumerate user phone numbers, roles and department structure by posting sequential userId values.","category":"package","nicknames":[],"who_cares":["qknow","self-hosted","java"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker reads user phone numbers, roles and department structure without logging in.","analyst_note":"Find the fixed qKnow version and whether the SecurityConfig change is in the upstream repo; the NVD entry alone gives no fix.","how_to_check":"- Check the qKnow version in use; affected versions are 2.4.3 and earlier.\n- Request `/flyflow/userById` or `/flyflow/roleAll` without a session token and see whether data is returned.\n- Review the SecurityConfig permit rules for `/flyflow/**` paths.","needs_analyst":true,"not_affected_if":["auth-required"],"who_is_affected":"Teams that run qKnow 2.4.3 or earlier with the /flyflow workflow integration exposed to a network the attacker can reach. The flaw is in the permit rules, so any deployment using the default SecurityConfig is exposed. Instances not reachable from outside the network, or running a newer version, are less exposed.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000615,"input_tokens":3347,"output_tokens":560,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111694':12A,15A '-2026':11A,14A '/flyflow':27B,70C '/flyflow/userbyid':84C '2.4.3':24B,57C 'access':69C 'allow':64C 'attack':40B,67C,77C 'authent':3A,32B,61C 'call':86C 'contain':58C 'cve':10A,13A 'depart':48B,97C 'deptlistbyparentdeptid':89C 'endpoint':30B,73C 'enumer':42B,91C 'expos':4A,25B 'host':21B 'integr':29B,72C 'java':16B 'miss':2A,60C 'number':7A,45B,94C 'packag':17B 'permit':35B,74C 'phone':6A,44B,93C 'post':51B,79C 'qknow':1A,18B,22B,55C 'remot':39B,66C 'role':9A,46B,95C 'roleal':87C 'securityconfig':34B,76C 'self':20B 'self-host':19B 'sequenti':52B,80C 'structur':49B,98C 'unauthent':38B,65C 'user':5A,43B,92C 'userid':53B,81C 'valu':54B,82C 'vulner':62C 'without':31B 'workflow':28B,71C","nicknames":[],"mitigations":[],"who_affected":"Teams that run qKnow 2.4.3 or earlier with the /flyflow workflow integration exposed to a network the attacker can reach. The flaw is in the permit rules, so any deployment using the default SecurityConfig is exposed. Instances not reachable from outside the network, or running a newer version, are less exposed.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T18:17:52+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-111694","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111694","severity":null,"published_at":"2026-10-16T18:17:52+00:00","modified_at":"2026-10-21T21:17:55+00:00","first_seen_at":"2026-10-23T21:57:13+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}